Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5697850 | Driving shaft having splined male and female portions | Toshihiko Yaegashi | 1997-12-16 |
| 4639925 | Semiconductor laser | Haruki Kurihara, Kenji Matumoto, Hideo Tamura | 1987-01-27 |